15121990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{1307}}^1$

素因数の和:1416

約数の個数: 32

約数和(自身を含む): 29665440

約数和(自身を除く): 14543450

約数列:

[1, 2, 5, 10, 13, 26, 65, 89, 130, 178, 445, 890, 1157, 1307, 2314, 2614, 5785, 6535, 11570, 13070, 16991, 33982, 84955, 116323, 169910, 232646, 581615, 1163230, 1512199, 3024398, 7560995, 15121990]

約数ペア:

[(1, 15121990), (2, 7560995), (5, 3024398), (10, 1512199), (13, 1163230), (26, 581615), (65, 232646), (89, 169910), (130, 116323), (178, 84955), (445, 33982), (890, 16991), (1157, 13070), (1307, 11570), (2314, 6535), (2614, 5785)]